Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR2019870010815Uexternal-prioritypatent/KR900003517Y1/ko
Priority claimed from KR2019870011836Uexternal-prioritypatent/KR900003518Y1/ko
Application filedfiledCritical
Publication of JPS646189UpublicationCriticalpatent/JPS646189U/ja
Application grantedgrantedCritical
Publication of JPH0719965Y2publicationCriticalpatent/JPH0719965Y2/ja